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Add the new Aprilaire 500 Humidifier Annual Maintenance Kit to your order! This convenient kit gives you all the parts you need to maintain your Aprilaire 500 humidifier each year and keep it running in like-new factory condition.

The Aprilaire 500M Humidifier is one of eight updated humidifier models from Aprilaire. Get big results for small to mid-size homes with the Model 500M Whole-Home Humidifier.

The Aprilaire Model 500M Whole-House Humidifier features a built-in bypass damper, one Aprilaire water panel, and is designed for use in small to mid-size homes.

The Aprilaire Model 500M Whole-House Humidifier:
* Utilizes a manual humidifier control
* Installed in either your living area or central heating and cooling system ductwork
* Comes equipped with a drain to flush minerals from the unit
* Has an evaporation capacity of 0.50 gallons per hour
* Humidifies tightly-constructed homes up to 3,000 square feet in size

The Aprilaire 500M bypass humidifier is an economical proven performer in the extensive line of Aprilaire Humidifiers.

Installation and Operating Manuals:
Click Here for Detailed Aprilaire 500M Humidifier Installation Instructions

Click Here for the Aprilaire Humidifier Owners Manual

Aprilaire Humidification Facts For Total Indoor Air Comfort

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• Installed in either your living area or central heating and cooling system ductwork
• Comes equipped with a drain to flush minerals from the unit
• Has an evaporation capacity of 0.50 gallons per hour
• Humidifies tightly-constructed homes up to 3,000 square feet in size